ALLEN & HEATH ML5000 User's Guide download pdf (Page 49)

ML5000 User Guide 49

O1 PFL TRIM. Adjust this control to set the

listening level of the PFL selection. Provides a

range from -12dB attenuation to +6dB gain with

normal ‘0dB’ centre detented position. It does not

affect the PFL metering which always reflects the

true reading.

This lets you match the PFL listening level to your

normal AFL and main mix monitoring levels,

typically much quieter. It can prevent the sudden

rise in volume when you press a PFL switch.

O2 2TRK SOURCE. Press this switch to listen

to the 2-track input in the headphones, local, and

engineers wedge monitors. The signal is fed in

mono to the engineers wedge. This lets you check

the output of a stereo recorder. This selection

overrides any selected LR and C monitor source

until released. It is itself overridden by any P/AFL

selection. The 2TRK source is not sent to the

meters.

O3 LR SOURCE. Press this switch to listen to

the main post-fade LR output in stereo. It is

overridden by the 2TRK and P/AFL selections.

O4 C SOURCE. Press this switch to listen to the

main C (centre) output in mono. As with LR it is

overridden by the 2TRK and P/AFL selections.

Press LR and C together to monitor a 3 output LCR

system in stereo. This mixes the C signal equally

into L and R.

O5 MONO. Press this switch to listen to the

selected monitor source in mono. This only affects

the monitor outputs.

It is useful to check for mono signal compatibility. If

the signal drops in level or loses quality when

monoed then there may be a problem with phasing

between the left and right signals.

O6 LOCAL MONITOR LEVEL. This adjusts the

stereo local monitor output level.

O7 MUTE. Press this switch to mute the local

monitor output. This does not affect the

headphones. It allows headphones only monitoring,

useful in performance situations where the console

is operated within the audience area, or when you

want to prevent acoustic interference when

checking signals in the headphones.

O8 PHONES LEVEL. This adjusts the level of

the monitor signal in the stereo headphones.

WARNING: To prevent damage to

your hearing start with the headphones level set

to minimum. Avoid continued high listening

levels in the headphones or any other earpiece.

P1 ADD MODE. This switch determines how the

P/AFL system works. It selects whether pressing

one or more input PAFL switches cancels or adds

to the previous selection, the same for the output

AFL switches. It does not affect the how the PAFL

and AFL switches interact.

Auto-cancel. In its up position auto-cancel mode

is selected. Pressing a PAFL automatically turns off

any previous PAFL selection, and pressing an AFL

turns off any previously AFL selection. This lets you

quickly check the channels one at a time without

having to turn each selection off first.

Add mode. Press this switch to select add mode.

Pressing a PAFL adds to any currently active PAFL

selection, and pressing an AFL adds to any

currently active AFL selection. This lets you check

combinations of signals in the monitor.

PAFL / AFL interaction. Pressing any PAFL while

AFL is active automatically overrides the AFL

selection by turning it off. Releasing PAFL restores

the AFL selection. However, pressing any AFL

while PAFL is active cancels the PAFL selection.

Releasing AFL does not restore the PAFL selection.

This logic suits live sound mixing where you would

monitor an output mix using AFL and interrupt it to

quickly check the input sources using PAFL.

P2 INPUT PAFL. In its up position pressing an

input channel PAFL switch selects PFL. In its down

position stereo in-place AFL is selected. It does not

affect the output AFL switching.

Input PFL (pre-fade listen). The input channel

pre-fade signal is monitored in mono.

Input AFL (after-fade listen). The input channel

post-fade, post-pan/blend signal is monitored in

stereo. It follows the setting of the pan and blend

controls with C mixed into L and R. This lets you

check the level and image of the signal in the mix.

Output AFL. The output channel post-fade signal

is monitored in mono or in stereo pairs.

P3 CLEAR ALL. Press this switch to turn off all

currently selected PAFL and AFL switches. Its LED

lights to show that one or more switches are active

and can be cleared. Note that this switch also

provides the clear/toggle function in SIP mode.

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ALLEN & HEATH ML5000 User's Guide Page 49

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